The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 30, 2013
Filed:
May. 26, 2009
Satoshi Suzuki, Toyota, JP;
Kenji Okazaki, Toyota, JP;
Satoru Kato, Toyota, JP;
Motoichi Nakayama, Toyota, JP;
Yoshinobu Wada, Seto, JP;
Satoshi Suzuki, Toyota, JP;
Kenji Okazaki, Toyota, JP;
Satoru Kato, Toyota, JP;
Motoichi Nakayama, Toyota, JP;
Yoshinobu Wada, Seto, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
A safety valve of the invention including a cleavable groove is provided in a battery case of a sealed battery containing a power generating element inside. The cleavable groove is partly formed with a measuring groove having a width wider than other portions. Even if other portions of the cleavable groove have fairly small groove width, a groove width of the cleavable groove can be obtained and determined the quality by measuring a groove width of the measuring groove. Thereby, a safety valve and a manufacturing method thereof, a sealed battery and a manufacturing method thereof, a vehicle, and a battery mounting device are provided to achieve less variation of valve opening pressure and stable product quality, as well as reliably assure the good quality.